Improvement in gang-plows



P. H.STANDISH.

Gang Plow.

Patented Sept. 1, 1868.

UNITED STATES PATENT OFFICE.

P. H. STANDISH, OF MARTINEZ, CALIFORNIA, ASSIGNOR TO HIMSELF AND OLIVERC. COFFIN.

IM PROVEM ENT IN GANG-PLOWS.

Specification forming part of Letters Patent No. 81,700, dated September1, 1868.

To all whom it may concern:

Be it known that I, I. H. STANDIsH, of Martinez, in the county of ContraCosta and State of California, have invented a new and usefulImprovement on Gan g-Plows; and I do hereby declare that the followingis a full, clear, and exact description of the construction andoperation of the same, reference being had to the annexed drawings,making a part of this specification. j

Figure l is a side elevation of my invention. Fig. 2 is a plan or topView. Fig. 3 is a rear elevation. Figs. 4, 5, 6, and 7 are sectional anddetached views.

Similar letters of reference indicate corresponding parts in the severalfigures.

The object of the within-described invention is to raise and lower theplows into and out of the ground with greater ease and convenience;also, the means of adjustment of the tongue Vfor a proper line of draft,and the manner of attaching the plow-standards to the bed or beam.

Fig. 2 shows the shaft or axle D, which is cranked at x, and more fullyshown in Fig. 3 5 has a tooth or notched wheel, E, on the opposite end,held in position and made adjustable by the set-screw Y in its hub F.Near the periphery of the toothedwheel E is a hub,

j G, receiving the axle of the furrow-wheel A,

and secured thereto by the set-screw p.

The lever M in Fig. 3 has a hole in its lower end, through which passesthe main axle or shaft D, and upon which it is pivoted.

This lever is provided with a pawl or catch, to

work either way, as desired.

It will be seen that a short reciprocating motion of the lever M in Fig.1 will work the pawl I, which is shown turned forward, and will raisethe plows from the ground, and will be retained in that position by thefoot-pawl or catch N until another stroke is given to the lever M, whenthe plows are raised still higher, as the case maybe. The foot'pawl orcatch keeps the gage of the plowing.

When the plows are out of the ground and the lever-pawl I is set to workforward,-by tripping the foot-pawl N the plows drop instantly to theground, and go down to their greatest depth unless arrested by theIfootpawl N at the depth required.

In Fig. 7 is shown the adjusting-bolt J, which passes through the olevisIt, that is made fast to the rear end of the tongue H. By unscrewing thenuts S S the tongue is allowed its upward or downward adjustment, beingpivoted on the bolt Q. By unscrewing and screwing the nuts on the endsof the bolt or rod J, the tongue has its lateral or side adjustment, thehole in the tongue, through which the bolt Q passes, being made oblongto allow it to work. The object of the adjusting-tongue is to get aproper line of draft.

The plow-standards are fastened to the side ofthe bed or beam B, and aremade in a cranked or elbow form, with a slot and setscrew at thehorizontal forward terminus, and are pivoted upon the bolts o, whichpass through the hole tin the turn of the standard, as shown in Fig. 4.The end of the set-screw rests upon the bed B after passing through thelag or boss of the standard of which it is a part. By this means theplows are more nicely trimmed and kept upon a line with respect to eachother, which becomes necessary by the frequent sharpening and changingtheir set or position.

What I claim as my invention, and desire to secure by Letters Patent,is-

1. The wheel E, lever M, with pawl I and foot-pawl N, and manner ofarrangement thereof.

2. The tongue-adjusting rod J, clevis It, plate P l, as arranged andsecured to the bed or beam 3. The construction and arrangement of the

